Network Troubleshooting第 91 / 100 题
Intermittent connectivity affects devices only during business hours, correlating with heavy equipment operation nearby. Which cabling issue is the likely culprit?
a.Incorrect DNS server
b.Electromagnetic interference (EMI) on copper cabling
c.Exhausted DHCP scope
d.A duplicate default gateway
解析
Interference from nearby heavy equipment induces EMI on unshielded copper cabling, causing errors and intermittent connectivity that tracks with equipment use. Rerouting cable away from the source or using shielded cable or fiber resolves it. The time-based correlation is a strong clue.
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